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ChatGPT 6 Pro compatibility: explicit Latest selection is needed instead of pinning GPT-5.6 Sol #316

Description

@ventianima-lab

Summary

Reporting a ChatGPT + DevSpace integration/model-selection compatibility problem. The intended model is 6 Pro, but explicitly choosing GPT-5.6 Sol and then Pro selects 5.6 Pro, not 6 Pro.

This is not yet established as a DevSpace server defect: ChatGPT owns the model picker, and Oracle browser automation is involved. Please help clarify the supported 6 Pro workflow and document it for DevSpace users.

Environment

  • Windows; ChatGPT web with a registered DevSpace MCP app
  • @waishnav/devspace 1.0.8 (npm latest checked 2026-09-07)
  • @steipete/oracle 0.18.0 (npm latest checked 2026-09-07)
  • Our local integration has compatibility patches; this is not a clean upstream-only reproduction.

Observed model-selection behavior

  1. Open ChatGPT's composer model/effort picker.
  2. Explicitly select Latest (최신 in Korean), then choose Pro at maximum power (5/5).
  3. The composer displays 6 Pro. Before selecting Pro, Latest may have no numeric version label.
  4. If GPT-5.6 Sol is explicitly selected instead, choosing Pro displays 5.6 Pro.

Integration guidance or automation that pins the 5.6 row therefore does not select the intended 6 Pro model. Merely preserving the existing selection is also insufficient when 5.6 was selected previously: the flow must explicitly choose Latest before Pro.

Expected behavior / requested guidance

  • Document and support explicit Latest selection → Pro → verify the visible 6 Pro label for DevSpace-connected ChatGPT sessions.
  • Do not conflate Latest with the explicit GPT-5.6 Sol row.
  • Clarify whether any DevSpace setup/tool-exposure changes are required for 6 Pro, or whether this belongs entirely to ChatGPT/Oracle.
  • If upstream-owned, document the workaround or cross-reference the upstream issue so model-selection failures are not misdiagnosed as MCP failures.

Workaround and scope

We are implementing explicit Latest selection followed by Pro, with fail-closed verification of model and effort. We intend to retain that route until Oracle officially supports 6 Pro and the native route is actually verified.

This report concerns selecting the intended model. It does not claim that DevSpace can never work with 6 Pro, nor that selecting Pro proves actual workspace capability. No credentials, private workspace paths, or conversation URLs are included.

Activity

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